<template>
 <div class="todo-container">
    <div class="todo-wrap">
      <Header :addTodo="addTodo"/>
      <List :todoList="todoList" :signleChecked="signleChecked" :signleDelete="signleDelete"/>
      <Footer :todoList="todoList" :checkedAll="checkedAll" :deleteSuccess="deleteSuccess"/>
    </div>
  </div>
</template>

<script lang="ts">
import { defineComponent } from "vue";

export default defineComponent({
  name: "App",
});
</script>

<script setup lang="ts">
import Header from "./components/Header/index.vue"
import List from "./components/List/index.vue"
import Footer from "./components/Footer/index.vue"

import { nanoid } from "nanoid"
import {ref , onMounted , watch} from "vue"

export interface todoListItemType {
  id: string,
  thing: string,
  done: boolean
}
export type todoListType = todoListItemType[]
const todoList = ref<todoListType>([])

//初始化到本地存储拿数据
onMounted(()=>{
  todoList.value = JSON.parse(localStorage.getItem("todoList") as string) || []
})
//监听数据改变添加到本地
watch(todoList , ()=>{
  localStorage.setItem("todoList" , JSON.stringify(todoList.value))
} , {deep:true})

//1.添加
const addTodo = (newTodo: todoListItemType) => {
  todoList.value.unshift(newTodo)
}

//2.单个选中
const signleChecked = (id: string) => {
  todoList.value.forEach((item) => {
    item.done = item.id === id ? !item.done : item.done
  })
}

//3.单个删除
const signleDelete = (id:string) =>  {
  todoList.value = todoList.value.filter((item) => {
    return item.id !== id
  })
}

//4.切换全部
const checkedAll = (newDode: boolean) => {
  todoList.value.forEach((item)=>{
    item.done = newDode
  })
}

//5.删除已完成
const deleteSuccess = () => {
  todoList.value = todoList.value.filter((item) =>{
    return !item.done
  })
}
</script>


<style>
/*base*/
body {
  background: #fff;
}

.btn {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 0;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 1px 2px rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}

.btn-danger {
  color: #fff;
  background-color: #da4f49;
  border: 1px solid #bd362f;
}

.btn-danger:hover {
  color: #fff;
  background-color: #bd362f;
}

.btn:focus {
  outline: none;
}

.todo-container {
  width: 600px;
  margin: 0 auto;
}
.todo-container .todo-wrap {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}


</style>
